Automatic train-stop.



R. HAMMERLY.

AUTDMATIC TRAIN STOP; APPLIUAELIG HLED SEPT. 13, 1913.

jatented July 14, 1914.

2 SHEETS-SHEET l.

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R. HAMMERLY.

AUTOMATIC TRAIN STC".

APPLLoATIoN FILED s221213, 1913.

- Patented July 14, 1914.

`2 SHEETS-SHEET 2.

ATTORNEYS rnvrrnn salaires ramener carros.

RICHARD HAMMERLY, 0F NEW YORK, N. l'., ASSIGNDR OF OSE-HALF T0 FRANK E.

'Il."'XId.|"Y OF WOBHAVEN, NEW YORK.

Speciication of Letters Patent.

patented July 1a, 1914i.

Application filed September 13,v 1913. Serial No. 789,631.

To all whom it may concern Be it known that L'Rronann Harriman'. a citizen of the United States, and a resident of thecity of New York, liroodhaven, borough of Queens, in the county of Queens and State of 1New York, have invented a newv and improved Automatic Train-Stop, of which the following is a full, clear, and exact description.

My invention has for its object to provide an automatic.v train stop having a depending arm von a locomotive for engaging trips at the side of the track Ito operate a signal and a signal member for engaging a linger on a gshaft connected with a brake valve so that should the4 locomotive `pass the signal when in danger position `the trip will operate the brakes on the locomotive through the finger with which it will engage. Independent means are provided for operating the 'brakesat 'the will vof the engineer'.

1 Another object of the .invention is to provide a cylinder in-communication w-itlrthe vbrake cylinder and -havinga piston operable by aninereaseof pressure in the cylinder. 'the piston operating a rack which engages a pinion secured to' the stem of a rotary throttle, valve so that the throttle valve will be automatically closed when the brakes are a-pplied.-

Still another object of the invention is to' how the members are assembled and are disposed in the locomotive; Fig. 2 is an ent larged fragmentary sectional view showing the means on the locomotivefor operating' as their construction and their connections, and F ig. 6 is an enlarged sectional view on the line Gu@ of Fig.

By referring to the drawings it will be seen that a sleeve 5 is mounted for rotatingI ings that the projection 9 on the shoe l() will engage the projection 11 on the side of the recess 8 so that ythe sleeve 5 will rotate Awith the-shoe 10 and the shaft 7. The shaft 7 is normally :held in vthis position by means of an arm 12 having a. recess 13, the arm 12 normally engaging at its recess 13 a collar 14. on the sleeve 5. The arm 12 is supported when in this position by a flange 15 which is secured to the locomotive. At the top ofthe shaft 7 there is ahand-wheel 16 by which the shaft 7 may be rotated hyhand when desired. y Extending radially from the shoe 10 therey is a finger 17 with which the signalk member 18 is. adapted to engage when the signal member 18 is raised to the posi.- tion-shown in Fig. 5 of the drawings, which serves to turn the shaft 7 and with it the sleeve 5 so thatthe gear wheel 19 on the sleeve 5 will rotate the `rear lwheel 2O on the valve stem 21 ofv the valve 2x2, this lvalve 22 commanding communication through the pipe 23 leading from a supply of fluid under pressure to the brake cylinder 24.

It will be understood that when the-sleeve 'has 'been rotated in the manner described that it will open the valve, 22 in the manner stated to permit air under pressure to iow tothe brake cylinder 24 thereby applying the brakes. The pipe 24.- is disposed around the pipe 23 at the valve 22 and is connected with the pipe 23 at 25 and 26 so that the engineer may by means of a hand valve 27 permit the air under pressure to flow to the and the trips onthe side oi the track well brake cylinder 2li to apply the brakes indel29 serv-ing to close the throttle valve 3Q by.

means of ythe piston rod 31 which has a rack 32 meshing with the piston 33 on the fice 38 through which the right hand side of the cylinderI 28 may communicate with the atmosphere. The left of the cylinder 28 has an opening 39 in Which-is secured a pipe 40 having a valve-41, by means of which the engineer is permitted to .reduce ,the pressure at thel left of the cylinder 28.

the pipe27 and the bra-ke Ivcylinder 24 of the pipes leading from the said brake cylinder 2er-'to lthe pipe 27. In the manner described the ro-tary movement of the sleeve 5 bymeans of the signal member 18 and the fin'- grer 17 not only serves to permit the flow of a fluid under pressure to the brake cylinder 24. but this fluid under pressure also flows to the eylinder28 moving the piston 29 to the right shutting; ofi" steam to -thelocomotive the same time that the brakes are applied.

The signal member l8is disposed 'vertically in a guide-way 42, the signal member bel-ow theguidc-w21y 42 having a rack 43 whiclrmeshes with a pinion 44 securedto a'stud 45. journaled in a frame member 46, a member 47 with arms 48 and 49 being also lsecured to the stud 45. The arm 48 is connected with an arm 50 secured to a stud .6 1 by means of a rod 52, this stud 51 being jeurnaled in a bearing in the frame 46 and .beingr secured` to a pinion 53 with which meshes a rack 54.which extends up through al guide-way in a plate 56. and to which the trip57 is secured, this trip 57 being provided Iwit'liv'ajb roller 58 with which an iai-m 59 on thelociinotive is adapted to en 'l`liear1n'49'on the member 47 is connected with the arm 59 on a member 60 by means of a rod 61, the member 60 being` secured to a studl (51a and to this stud G1 there is mounted a pinio-n 62, the stud (51a beinejournalcd .in the frame member 46. Meshing with the pinion 62 thcre'is arack (i3 which extends up through a. guide-wav.

(54 in a plate 65 and carries the trip G6 hav ing a roller 67. Another arm 68 on the member G() is connected by a rod 69 with aV crank 70 on a shaft 71, this shaft 71 being; yiournalwl. in a bearing' 72'and having a f cond crank 73 which is connected with '6b 'iti semaphore 74 by means ot a rod 75.

With the movement of the loeoi'notive along;f a track the linger 17 will strike the signal member v18 when the signal member -Copies o1' this patent may be obtained for manner. At

to close the throttle valve30 for to move the semaphore 74 to the position shown in Fig. 5 of the drawings. With the continued movement. of the locomotive, the arm 59 will strikethe roller 67 on the trip 66 to press down the trip-'66 which by means of the pinion 62 the member 60 the rod 61, the member 47 and the pinion 44 will lower the signal member 18 and will by means of the red 52, the arm 50 and the pinion 53 raise the rack 54 of the trip 57. The movement of the member 60 will also by means-of the rod 69 rota-te the shaft 71 to lower the semaphore 74, this taking place when the locomotive with its train has moved out ofthe block.- y Claimsz' i 1. Infan' automaticv train stop, two trips spaced ,apartand each .provided with a rack, a pinion with which one of the racks meshes, a pinionv .with which the other rack meshes, two armssecured'to the first pinion, a signal, .means-connecting' one of the arms with the signal for operating the latter, a signal member havingl a rack, a pinion meshing with the last mentioned ra'cln'two arms se# lcured for moving'with the last mentioned pinion, means connecting the other .of the irst mentioned arms with one of the secondmentioned arms, an arm secured to the sec ond mentioned pinion and means connecting' the other of the second mentioned arms with the arm onthe second mentioned pinion.

2. In an automatic train stop, two trips, a signal, a Signall member, means connecting' one of the trips with the signal and the signal member and independent means con-v necting the signa-l member with the other trip for-the purpose speciiied.

3. In an automatic train stop, two trips having racks, a signal member having.,r a rack, a signal, ypinions meshing with the racks and provided with arms, means eonnecting an arm on a pinion at one of the trips with the signal and with an arm on the pinion at the signal member and means' connecting' an Yarm on the pinion at thesipim nal member with an arm on a pinion at the other trip.

In" testimony whereof, I have signed my name to this'specilieation in the presence of two subscribing witnesses.

RICHARD HA M M hilft LY.

Washington, D. C. 

